• AWWA DSS63730

AWWA DSS63730

Cleaning and Lining 10 Miles of Water Main per Year In the City of Minneapolis

American Water Works Association , 09/01/2006

Publisher: AWWA

File Format: PDF

$12.00$24.00


This slide presentation outlines an effort by the city of Minneapolis to cleaning and line 10 miles of water main per year. The project purpose was to: improve water quality (rusty water) in the distribution system; improve C-factor, increase volume and reduce friction; and, keep down costs by rehabilitation rather than replacement if water main is structurally sound. Topics covered include: selection of mains to be cleaned and lined; project timing; selling the project to stakeholders; project start up and staging; temporary water supply; shutting down the water main; access openings; cutting the pipe; cleaning and lining the water main; backflushing the service taps; disinfection; backfilling; and, removing temporary water supply. Includes figures.

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